Characters Have No Unicode Hex Values + Unity Issue

[AlexisDrain]

Basically, I'm trying to make "ReemKufi-Regular.otf" work in Unity on Windows.

I tried adding this font in two methods: 1- Using the default Unity UI + Arabic Support plugin. 2- Using TextMeshPro plugin. In both cases, however, Reem Kufi doesn't work.

(Reem Kufi compared to Cairo in Unity)

Here's what I think is the issue:

I opened ReemKufi-Regular.otf in FontForge and in FontLab, but none of the main Arabic letters had any unicode hex values. I think these unicode hex values are needed for Unity to display the font.

Notice the question marks in these two images:

(FontForge)

(FontLab)

[khaledhosny]

The way the font is built requires an OpenType layout engine, looks like Unity does not use one.